Image from Wikimedia Commons
Vegafi - CC BY-SA 3.0
unknown - Public Domain
"Ed. Loving pinx.t" - Public Domain
Who-When-What Company - Public Domain
Department of Defense - Public Domain
CBS Television - Public Domain
TheCatalyst31 - CC0 1.0
https://digitalcollections.nypl.org/items/7f591b21-5c9e-fa9a-e040-e00a18063d1c - Public Domain
Vibart, Henry Meredith, 1839-1917 - Public Domain
US Government Printing Office - Public Domain
unidentified photographer - Public Domain
Blaues Sofa - CC BY 2.0
Clarence M Burton - Public Domain
Artist: Franceso Spagnuoli (''floruit'' 1834-1871). Engraver: Gaetano Guadagnini (1800-1860) - Public Domain
Xavierd80 - Public Domain
Boris Kaufman / Борис Кауфман -
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Vegafi - CC BY-SA 3.0
Gilliam, Terry
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unknown - Public Domain
Benavides, Santos, 1823-1891.
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Marcus, Rudolph A. (Rudolph Arthur), 1923-
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Benavides, Antonio, 1808-1884
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"Ed. Loving pinx.t" - Public Domain
Ward, Joshua, 1685-1761
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Hawkins, David, 1913-2002
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Who-When-What Company - Public Domain
Nye, Bill, 1850-1896
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Department of Defense - Public Domain
Fallon, William J., 1944-
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Abegg, R. (Richard), 1869-1910
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Morrill, E. N. (Edmund Needham), 1834-1909
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Badger, Charles Johnston, 1853-1932
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CBS Television - Public Domain
Phillips, John, 1935-2001.
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TheCatalyst31 - CC0 1.0
North, Sterling, 1906-1974
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Clay, John Randolph, 1808-1885
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https://digitalcollections.nypl.org/items/7f591b21-5c9e-fa9a-e040-e00a18063d1c - Public Domain
Garnet, Sarah Smith Tompkins, 1831-1911.
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Murray, James L. (James Lore), 1919-2004
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Vibart, Henry Meredith, 1839-1917 - Public Domain
Schetky, John Christian, 1778-1874
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US Government Printing Office - Public Domain
Perkins, Carl C. 1954-
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Anglesey, Henry William Paget, Marquis of, 1768-1854
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unidentified photographer - Public Domain
Werkman, Hendrik Nicolaas, 1882-1945
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Ficino, Marsilio, 1433-1499
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Blaues Sofa - CC BY 2.0
John, Gottfried, 1942-....
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Clarence M Burton - Public Domain
Burton, Clarence Monroe, 1853-1932
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Murray, Eli H. (Eli Houston), 1843-1896
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Gorky, Maksim, 1868-1936
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Artist: Franceso Spagnuoli (''floruit'' 1834-1871). Engraver: Gaetano Guadagnini (1800-1860) - Public Domain
Rosaspina, Francesco, 1762-1841
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Marcks, Gerhard
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Xavierd80 - Public Domain
Dabit, Eugène, 1898-1936
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Hatcher, Robert Anthony, 1819-1886
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Boris Kaufman / Борис Кауфман -
Bovin, Aleksandr Evgenʹevich